With the arrival of the new millenium and the heightened attention to global warming, the previous usage of «clean coal» to refer to coal with lower regulated emissions was joined by a futuristic new vision, that of «zero - emissions» or «near - zero -
emissions coal use.
Not exact matches
Unabated
coal refers to the production of electricity from a
coal plant without
using treatments to cut carbon dioxide
emissions.
Southern Company, AEP, NETpower and a few others are
using American know - how to reduce
coal's
emissions.
The emergence of low - cost natural gas in the U.S., largely uncovered through fracking techniques, is one of the major reasons that the country has been able to lower its carbon
emissions and has started to ween itself off of
coal use.
Additionally, global kerosene
use has been estimated to emit up to 200 million tons of CO2 annually, which is the equivalent of
emissions from approximately 60 large U.S.
coal plants, heightening the need to develop sustainable alternatives.
«We can in fact help other parts of the world reduce their greenhouse gas
emissions dramatically by providing them with lower - carbon fuels in other parts of the world where they are
using very high - carbon fuels like
coal.»
Those actions would follow the Obama administration's policies, which include regulating
emissions from
coal - fired power plants and increasing renewable energy
use.
Visualizing the CO2
emissions saved by 56 of the Fortune 100 companies, expressed
using the quantity of
coal not burned.
Alberta is boosting its
use of renewable energy, closing power plants that burn
coal and in January increased its tax on carbon
emissions by 50 percent.
CCS really amounts to a combined GHG and natural gas hedge which, in a world of really expensive gas, allows you to maintain lower electricity prices than you perhaps otherwise would be able to as you can continue to
use relatively cheap and plentiful
coal while capturing and storing the
emissions.
Despite legitimate concerns about air pollution and greenhouse gas
emissions,
coal use will continue to be significant in the future.
In cases where a regulatory proposal deals with carbon
emissions (e.g. regulation of
emissions from vehicles or
coal - fired power plants), SCC is
used to express the monetary value of changes in
emission amounts.
Cuomo has pushed in recent years to adopt new efforts aimed at reducing
emissions and shifting the state toward the majority
use of clean and renewable power in the coming years, including an effort to close
coal - burning power plants by 2020, promoting offshore wind projects and developing a clean energy standard to have the state on 50 percent renewable energy by 2030.
Combination of economic trends and policies Still, for now an array of Obama administration actions and economic trends are conspiring to cut
emissions, according to EIA: Americans are
using less oil because of high gasoline prices; carmakers are complying with federal fuel economy standards; electricity companies are becoming more efficient; state renewable energy rules are ushering wind and solar energy onto the power grids; gas prices are competitive with
coal; and federal air quality regulations are closing the dirtiest power plants.
«Those will have profound effects on carbon dioxide
emissions,» Stavins said, «because they'll reduce investment in new
coal and slow the
use of existing
coal.»
«Growing
use of
coal globally is overshadowing progress in renewable energy deployment, and the
emissions intensity of the electricity system has not changed in 20 years.
«Reduced
emissions have been due to increased
use of natural gas, and the decreased
use of
coal.
«This study shows it's possible to reduce
coal use and cut
emissions without major economic impacts, refuting skeptics who've predicted economic ruin,» said Paul Bledsoe, a former Clinton White House official and climate expert attending the Paris negotiations.
The scrubbers are a commonly
used method for decreasing carbon
emissions from industries such as
coal - fired power plants, which produce more than 14 billion metric tons of carbon each year.
If China's
use of renewable and nuclear energy grows at a plausible rate, and the country captures some of its
emissions from
coal - burning power stations and keeps making improvements in energy efficiency, by 2050 its total
emissions could end up 4 per cent lower than today, says Zhou.
As an example, I firmly believe that there is great promise in advanced technologies, such as Carbon Capture and Sequestration (CCS), that can allow us to
use our domestic
coal and natural gas with greatly reduced carbon
emissions.
Based on a unique model that links China's energy system and economy, the study finds that China's
coal use, a major source of global carbon dioxide (CO2)
emissions, should peak some time around the year 2020, while the country's overall CO2
emissions would peak around 2030, or perhaps sooner.
«There are also other important measures to reduce methane
emissions from
coal mining, municipal waste treatment and gas distribution, for example, as well as black carbon
emission reductions through elimination of high - emitting vehicles,
use of cleaner biomass cooking and heating stoves, replacement of kerosene wick lamps with LED lamps and other measures,» adds Zbigniew Klimont of the International Institute for Applied Systems Analysis, Austria, who also took part in the study.
We also need to explore alternative fuels with lower greenhouse gas
emission profiles, integrate larger amounts or renewable into the electric grid and develop ways to
use natural gas and
coal in cleaner ways.
«Carbon reductions won't hinder Chinese growth: Professor sees
coal use peaking within next decade,
emissions dropping soon after.»
The world could cut greenhouse
emissions by fracking for gas and replacing
coal - fired power stations, but
using gas to produce power could then lock us into a high - carbon future.
Efforts to cut greenhouse gas
emissions by reducing the
use of
coal in China may run into difficulties getting accurate numbers
For those countries, Ummel said,
emissions information is based on both back - channel information gathering and modeling to predict the amount a particular plant would likely emit based on its size and other factors like the type of
coal it
uses.
«As the Clean Air Act and amendments have taken effect there has been a reduction in sulfur
emissions from
coal combustion, so that the amount of atmospheric sulfur deposited each year is only 25 percent of what it
used to be.
Recent studies suggest that energy obtained
using the technique would be cheaper than more popular methods of getting low
emissions coal power, like so - called Integrated Gasification Combined Cycle (IGCC), which involves gasifying
coal above ground in facilities like the FutureGen project, which the Bush Administration proposed and then killed.
Australia and China are both building what will become zero -
emissions coal - fired power plants
using IGCC technology, dubbed ZeroGen and GreenGen, respectively.
Stricter
emissions requirements on
coal - fired power plants, together with low natural gas prices, have contributed to a recent decline in the
use of
coal for electricity generation in the United States, she said.
States that
use coal power, such as Wyoming, West Virginia and Kentucky, have the highest carbon dioxide
emissions.
The International Energy Agency estimated last year that both the decline in China's
coal use and falling electricity demand reduced its carbon dioxide
emissions by 1.5 percent in 2014, leading to a 0.2 percent reduction in global
emissions.
According to Princeton University scientists Stephen Pacala and Robert Socolow's «wedge» strategy of climate change mitigation — which quantifies as a wedge on a time series graph various sets of efforts to maintain flat global carbon
emissions between now and 2055 — at least two million megawatts of new renewable energy will have to be built in the next 40 years, effectively replacing completely all existing
coal - fired power plants as well as accounting for increases in energy
use between now and mid-century.
To reduce
use on Portland cement, the material responsible for 7 percent of global CO2
emissions, Bullitt
uses fly ash (a waste product of
coal burning) to create cement.
Meanwhile Germany, the EU's economic powerhouse and a country often regarded as a leader in cutting CO2
emissions, is gradually upping its
coal use.
Coal - powered synthetic natural gas plants being planned in China would produce seven times more greenhouse gas
emissions than conventional natural gas plants, and
use up to 100 times the water as shale gas production, according to a new study by Duke University researchers.
They also must control mercury air
emissions from
coal - fired power plants, waste incineration and related industrial processes, and reduce or eliminate mercury
use in small - scale gold mining and chemical manufacturing.
The analysis by Yang and Jackson finds that if the gas produced by the new plants is
used to generate electricity, the total lifecycle greenhouse gas
emissions would be 36 percent to 82 percent higher than pulverized
coal - fired power.
Coal - powered synthetic natural gas plants being planned in China would produce seven times more greenhouse gas
emissions than conventional natural gas plants, and
use up to 100 times the water as shale gas production, according to a new study.
Coal use is growing globally and, to avoid catastrophic warming, climate scientists say we must change the way we tackle carbon
emissions
Plantation forestry is the key rather than the usual approach of cutting
emissions by reducing the rate of
using carbon fuels like
coal, oil and gas.
«They
use default
emissions factors for various types of
coals, they have to
use various efficiency rates and things like that, and slight tweaks in those has huge impacts when you're talking about hundreds of millions of credits.»
David Streets, a senior scientist who studies historic mercury
emissions at the Argonne National Laboratory in Illinois, said mercury
emissions have gone down in the United States and Europe, but a rush in
coal use in some fast - growing countries like China, and a resurgence of artisanal gold mining in places like Africa, is offsetting the reductions.
After all, the
use of those commodities gives rise to the carbon commodity — an
emissions allowance — in the same way that burning
coal releases CO2.
Continuing widespread
use of
coal and low - grade diesel fuel, which also produce fine particles of soot, leaves China's record as the world's largest single source of man - made greenhouse gas
emissions unchallenged.
With more money for development of novel designs and public financial support for construction — perhaps as part of a clean energy portfolio standard that lumps in all low - carbon energy sources, not just renewables or a carbon tax — nuclear could be one of the pillars of a three - pronged approach to cutting greenhouse gas
emissions:
using less energy to do more (or energy efficiency), low - carbon power, and electric cars (as long as they are charged with electricity from clean sources, not
coal burning).
Using executive authority, the President will issue a new rule to limit carbon dioxide
emissions from
coal - fired power plants in the United States.
The world could cut greenhouse
emissions by fracking for gas and replacing
coal - fired power stations, but
use of gas could then lock us into a high - carbon future.